2640771

素因数分解:

$3^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{251}}^1$

素因数の和:431

約数の個数: 24

約数和(自身を含む): 4402944

約数和(自身を除く): 1762173

約数列:

[1, 3, 7, 9, 21, 63, 167, 251, 501, 753, 1169, 1503, 1757, 2259, 3507, 5271, 10521, 15813, 41917, 125751, 293419, 377253, 880257, 2640771]

約数ペア:

[(1, 2640771), (3, 880257), (7, 377253), (9, 293419), (21, 125751), (63, 41917), (167, 15813), (251, 10521), (501, 5271), (753, 3507), (1169, 2259), (1503, 1757)]